<template>
  <form-item-wrapper :designer="designer" :field="field" :rules="rules" :design-state="designState"
                     :parent-widget="parentWidget" :parent-list="parentList" :index-of-parent-list="indexOfParentList"
                     :sub-form-row-index="subFormRowIndex" :sub-form-col-index="subFormColIndex"
                     :sub-form-row-id="subFormRowId">
    <el-select ref="fieldEditor" v-model="fieldModel" class="full-width-input"
               :disabled="field.options.disabled"
               :size="field.options.size"
               :clearable="field.options.clearable"
               :filterable="field.options.filterable"
               :allow-create="field.options.allowCreate"
               :default-first-option="allowDefaultFirstOption"
               :automatic-dropdown="field.options.automaticDropdown"
               :multiple="field.options.multiple" :multiple-limit="field.options.multipleLimit"
               :placeholder="field.options.placeholder || i18nt('render.hint.selectPlaceholder')"
               :remote="field.options.remote" :remote-method="remoteMethod"
               @focus="handleFocusCustomEvent" @blur="handleBlurCustomEvent"
               @change="handleChangeEvent">
      <el-option v-for="item in field.options.optionItems" :key="item[options.value_]" :label="item[options.label_]"
                 :value="item[options.value_]" :disabled="item.disabled">
      </el-option>
    </el-select>
  </form-item-wrapper>
</template>

<script>
import FormItemWrapper from './form-item-wrapper'
import emitter from '@/utils/emitter'
import i18n, {translate} from "@/utils/i18n";
import fieldMixin from "@/components/form-designer/form-widget/field-widget/fieldMixin";
import {EventBus} from "@/components/javaScript/EventBus";
import axios from "axios";

export default {
  name: "select-widget",
  componentName: 'FieldWidget',  //必须固定为FieldWidget，用于接收父级组件的broadcast事件
  mixins: [emitter, fieldMixin, i18n],
  props: {
    field: Object,
    parentWidget: Object,
    parentList: Array,
    indexOfParentList: Number,
    designer: Object,

    designState: {
      type: Boolean,
      default: false
    },

    subFormRowIndex: { /* 子表单组件行索引，从0开始计数 */
      type: Number,
      default: -1
    },
    subFormColIndex: { /* 子表单组件列索引，从0开始计数 */
      type: Number,
      default: -1
    },
    subFormRowId: { /* 子表单组件行Id，唯一id且不可变 */
      type: String,
      default: ''
    },

  },
  components: {
    FormItemWrapper,
  },
  inject: ['refList', 'formConfig', 'globalOptionData', 'globalModel'],
  data() {
    return {
      oldFieldValue: null, //field组件change之前的值
      fieldModel: null,
      rules: [],
    }
  },
  computed: {
    options() {
      return this.field.options;
    },

    allowDefaultFirstOption() {
      return (!!this.field.options.filterable && !!this.field.options.allowCreate)
    },

    remoteMethod() {
      if (!!this.field.options.remote && !!this.field.options.onRemoteQuery) {
        return this.remoteQuery
      } else {
        return undefined
      }
    },

  },
  beforeCreate() {
    /* 这里不能访问方法和属性！！ */
  },

  created() {
    /* 注意：子组件mounted在父组件created之后、父组件mounted之前触发，故子组件mounted需要用到的prop
       需要在父组件created中初始化！！ */
    this.initOptionItems()
    this.initFieldModel()
    this.registerToRefList()
    this.initEventHandler()
    this.buildFieldRules()

    this.handleOnCreated()
  },

  mounted() {
    let that = this;
    this.handleOnMounted()
    this.setOptionData(this.dataSourceMapData);

    EventBus.$on(this.options.apiData, () => {
      that.setOptionData(that.dataSourceMapData);
    })
  },

  beforeDestroy() {
    this.unregisterFromRefList()
  },

  methods: {
    setOptionData(v) {
      if (this.options.apiData && v && v[this.options.apiData]) {
        this.field.options.optionItems = v[this.options.apiData];
      }
      if(this.options.apiCode){
        const dicUrl = `/api/manager-api/mx-code-type/listCodeByTypeName?name=${this.options.apiCode}`
        axios.get(dicUrl).then(res=>{
            const resData = res.data.data;
            this.field.options.optionItems=resData.map(v=>({
              ...v,
              label:v.name,
            }));
        }).catch(err=>{

        })
      }
    }
  },
  watch: {
    "field.options.fieldAttribute": {
      handler(val) {
        if (val) {
          const attrList = this.designer.attrList;
          const [selected] = attrList.filter((v) => v.columnName === val);
          this.field = this.designer.replaceWidget(this.parentList, this.indexOfParentList,selected,this.field.options.parentId)
        }
      },
    },
  },
}
</script>

<style lang="scss" scoped>
@import "../../../../styles/global.scss";

.full-width-input {
  width: 100% !important;
}

</style>
